diff options
Diffstat (limited to 'lib/mnesia/test/mnesia_dbn_meters.erl')
| -rw-r--r-- | lib/mnesia/test/mnesia_dbn_meters.erl | 55 |
1 files changed, 26 insertions, 29 deletions
diff --git a/lib/mnesia/test/mnesia_dbn_meters.erl b/lib/mnesia/test/mnesia_dbn_meters.erl index f97bd973fc..5c3ea08a1d 100644 --- a/lib/mnesia/test/mnesia_dbn_meters.erl +++ b/lib/mnesia/test/mnesia_dbn_meters.erl @@ -93,7 +93,7 @@ some_meters() -> report_meter(Meter) -> Times = 100, Micros = repeat_meter(Meter,{atomic,{0,ignore}},Times) div Times, - io:format("\t~-30w ~-10w micro seconds (mean of ~p repetitions)~n",[Meter,Micros,Times]). + io:format("\t~-30w ~-10w nano seconds (mean of ~p repetitions)~n",[Meter,Micros,Times]). repeat_meter(_Meter,{atomic,{Micros,_Result}},0) -> Micros; @@ -110,9 +110,9 @@ meter(create) -> Key = 1, mnesia:transaction(fun() -> mnesia:delete({simple,Key}) end), Fun = fun() -> - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = mnesia:write(#simple{key=Key}), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -121,9 +121,9 @@ meter(open_safe_read) -> Key = 2, mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = mnesia:read({simple,Key}), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -132,9 +132,9 @@ meter(open_dirty_read) -> Key = 21, mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = mnesia:dirty_read({simple,Key}), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -144,9 +144,9 @@ meter(get_int) -> mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> [Simple] = mnesia:read({simple,Key}), - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), Int = Simple#simple.val, - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,Int) end, mnesia:transaction(Fun); @@ -155,9 +155,9 @@ meter(open_update) -> Key = 3, mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = mnesia:wread({simple,Key}), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -167,9 +167,9 @@ meter(put_int) -> mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> [Simple] = mnesia:wread({simple,Key}), - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = Simple#simple{val=7}, - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -179,10 +179,10 @@ meter(put_int_and_copy) -> mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> [Simple] = mnesia:wread({simple,Key}), - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), Simple2 = Simple#simple{val=17}, R = mnesia:write(Simple2), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -191,15 +191,15 @@ meter(dirty_put_int_and_copy) -> Key = 55, mnesia:dirty_write(#simple{key=Key}), [Simple] = mnesia:dirty_read({simple,Key}), - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), Simple2 = Simple#simple{val=17}, R = mnesia:dirty_write(Simple2), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), {atomic,elapsed_time(BeforeT,AfterT,R)}; meter(start_trans) -> - BeforeT = erlang:now(), - {atomic,AfterT} = mnesia:transaction(fun() -> erlang:now() end), + BeforeT = erlang:monotonic_time(), + {atomic,AfterT} = mnesia:transaction(fun() -> erlang:monotonic_time() end), {atomic,elapsed_time(BeforeT,AfterT,ok)}; meter(commit_one_update) -> @@ -209,19 +209,19 @@ meter(commit_one_update) -> [Simple] = mnesia:wread({simple,Key}), Simple2 = Simple#simple{val=27}, _R = mnesia:write(Simple2), - erlang:now() + erlang:monotonic_time() end, {atomic,BeforeT} = mnesia:transaction(Fun), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), {atomic,elapsed_time(BeforeT,AfterT,ok)}; meter(delete) -> Key = 7, mnesia:transaction(fun() -> mnesia:write(#simple{key=Key}) end), Fun = fun() -> - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = mnesia:delete({simple,Key}), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), elapsed_time(BeforeT,AfterT,R) end, mnesia:transaction(Fun); @@ -229,15 +229,12 @@ meter(delete) -> meter(dirty_delete) -> Key = 75, mnesia:dirty_write(#simple{key=Key}), - BeforeT = erlang:now(), + BeforeT = erlang:monotonic_time(), R = mnesia:dirty_delete({simple,Key}), - AfterT = erlang:now(), + AfterT = erlang:monotonic_time(), {atomic, elapsed_time(BeforeT,AfterT,R)}. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Calculate the elapsed time elapsed_time(BeforeT,AfterT,Result) -> - {(element(1,AfterT)*1000000000000 - +element(2,AfterT)*1000000+element(3,AfterT)) - - (element(1,BeforeT)*1000000000000 - +element(2,BeforeT)*1000000+element(3,BeforeT)),Result}. + {erlang:convert_time_unit(AfterT-BeforeT, native, nano_seconds),Result}. |